THE CITY
The two-car familyonce an American dreamis now being superseded by the three-car, and eventually perhaps the four-car family. This has resulted in ever better expressways to move the traffic faster and faster and add to modern man's wheeled conveni ence. Of course, everybody takes advantage of the new convenience, which means that those who really want to get to work on time have to get up at 5 a.m. to beat the traffic.
That is what Martin Greenhouse, 39, did one day last week, and he was tooling along Manhattan's East River Drive on his way to his job...